JP5476703B2 - Vehicle heating system - Google Patents

Description

  The present invention relates to a heating seat device for a vehicle.

Patent Document 1 discloses a vehicle heating apparatus that performs floor heating by circulating a heat medium over the entire floor surface of the vehicle.
JP 2008-87716 A

  However, since the heating area of the vehicle heating device of Patent Document 1 is disposed on the entire floor surface, there is a problem that the ratio of human body heat transfer to the total amount of input heat is low and the heating is not efficient.

  The present invention has been made in view of the above situation, and an object of the present invention is to provide an efficient vehicle seat device by locally heating a portion where a cold feeling is felt.

In order to solve the above-described conventional problems, a vehicle heating device according to the present invention includes a heater portion and a cover portion on which the heater portion is disposed, which is disposed on a vehicle wall surface facing an occupant's foot portion. comprising a planar heating element, said planar heating element is disposed extending up to the foot rest portion provided adjacent the center console side, thermally conductive heat generated from the planar heating element through the shoe The feet are heated by the action of at least one of the radiations, and at least a part of the cover is disposed to cover at least a part of the gap at the upper part of the driver's seat.

The vehicle heating device according to the present invention is configured such that heat generated from a planar heating element disposed on a vehicle inner wall surface facing an occupant's foot is caused by at least one of heat conduction or radiation through a shoe. Since it heats, the leg | foot part which is easy to feel a cold feeling in a human body can be heated locally, and an efficient heating seat apparatus for vehicles can be provided.
In addition, it is arranged to extend to the footrest provided adjacent to the center console side, and in addition to heating by heat from the vehicle inner wall surface, the shoe sole of the shoe placed on the footrest Heating is also possible by heat conduction from the heat source, and the heating performance is further improved.
Further, since at least a part of the cover part is disposed so as to cover at least a part of the gap part at the upper part of the driver's seat, it is possible to suppress the heat in the foot space of the driver's seat from escaping above the gap part. This will not impair the feeling of heating at your feet.

  The first invention includes a planar heating element disposed on a vehicle inner wall facing the foot of an occupant, and heat generated from the planar heating element acts as at least one of heat conduction and radiation through a shoe. The foot is heated by this, and the foot that is likely to feel a cold feeling in the human body is locally heated. Therefore, an energy-saving and efficient vehicle heating seat device can be provided.

In addition, the sheet heating element is arranged to extend to the footrest provided adjacent to the center console side, and in addition to heating by heat from the vehicle inner wall surface, it is placed on the footrest. Heating is also possible by heat conduction from the shoe sole of the shoe, and the heating performance is further improved.
Further, the planar heating element includes a heater portion and a cover portion on which the heater portion is disposed, and the cover portion is disposed so as to cover at least a part of the gap portion at the upper part of the driver's seat. In addition, since at least a part of the cover part is disposed so as to cover at least a part of the gap at the upper part of the driver's seat, the heat in the foot space of the driver's seat escapes above the gap. It suppresses and does not impair the feeling of heating at the foot. Further, radiant heating can be performed from the upper part of the driver's seat step toward the foot, and the feeling of heating of the foot can be improved.

According to a second invention, in particular, in the first invention , at least a part of the planar heating element is joined to the footrest part, and the planar heating element and the footrest part are integrated. Since the heating element and the footrest part are integrated, it is possible to attach the planar heating element and the footrest part at the same time when attaching to the vehicle, and work efficiency is improved.

In the third aspect of the invention, the sheet heating element of the first aspect of the invention is arranged on the back surface of the interior carpet in the vehicle.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
A first embodiment of the present invention will be described with reference to FIG.

  FIG. 1 is an external view of a vehicle heating apparatus according to a first embodiment of the present invention. The figure assumes a right-hand drive vehicle. In the figure, planar heating elements 3 and 4 are disposed on the vehicle inner wall surfaces 1 and 2 facing the feet of the passenger. The planar heating elements 3 and 4 are disposed on the back surface of the interior carpet and can be supplied with power from the battery. An accelerator pedal 5, a brake pedal 6, and a footrest 7 are provided.

  With the above configuration, when the occupant (driver) starts heating, the planar heating elements 3 and 4 that start feeding from the battery generate heat, the interior carpet at that portion is heated, and the surface temperature of the interior carpet rises. . The left foot placed on the footrest 7 is warmed through the shoes by radiant heat from the surface of the interior carpet on the planar heating element 3 side. When the left side surface of the left foot shoe is in contact with the interior carpet surface on the planar heating element 3 side, the shoe and the left foot are warmed by heat conduction from the interior carpet surface. On the other hand, the right foot placed on the accelerator pedal 5 is warmed through the shoes by the radiant heat from the interior carpet surface on the planar heating element 4 side. When wearing trousers, both the left and right feet have their ankles exposed from the bottom of the trousers, so that the radiant heat from the planar heating elements 3 and 4 is easily irradiated, and a feeling of heating centering on the ankles is obtained. It is done.

  As described above, the heat generated from the planar heating elements 3 and 4 heats the foot by the action of at least one of heat conduction and radiation through the shoe, and the foot easily feels cold in the human body. Since the vehicle is locally heated, an energy-saving and efficient vehicle heating seat device can be provided.

(Embodiment 2)
A second embodiment of the present invention will be described with reference to FIG.

FIG. 2 is an external view of a vehicle heating apparatus according to the second embodiment of the present invention. The difference between the present embodiment and the first embodiment is that, as shown in the figure, the planar heating element 8 extends to directly below the footrest portion 7 provided adjacent to the center console side. It is in the arrangement. The relationship between the footrest 7 and the planar heating element 8 at this time will be described with reference to FIG. FIG. 3A is an external view of the sheet heating element 8 of the present embodiment, and FIG. 3B is an external view when the sheet heating element 8 and the footrest 7 are disposed on the wall surface 1. As shown in FIG. 3A, the planar heating element 8 includes a heater portion 8a and a cover portion 8b provided with the heater portion 8a. As the heater portion 8a, for example, a non-woven fabric formed by meandering electric heater wires or a resin compound having PTC characteristics formed into a sheet shape and provided with electrodes is used. The cover portion 8b is molded from a resin having good thermal conductivity. The heater portion 8a and the cover portion 8b are bonded to each other with an adhesive or a double-sided tape. Then, a part of the planar heating element 8 is bent at a substantially right angle and joined to the upper surface of the footrest part 7 so that the planar heating element 8 and the footrest part 7 are integrated.

  As shown in FIG. 3B, when the footrest 7 is attached to the floor of the vehicle, the planar heating element 8 can be attached to the wall 1 at the same time. The back surface side of the sheet heating element 8 and the wall surface 1 are fixed with a plastic rivet fitting claw or the like. Further, the footrest portion 7 is fixed to the floor surface with a plastic rivet, a fitting claw or the like on the bottom surface side. The cover portion 8b is exposed to the vehicle interior side, and the heater portion 8a is disposed in contact with the wall surface 1 and the upper surface of the footrest portion 7.

  The detailed structure of the accelerator-side planar heating element 4 will be described with reference to FIG. 4A is an external view of the sheet heating element 8 according to the present embodiment, and FIG. 4B is an appearance view when the sheet heating element 8 is disposed on the wall surface 2. As shown in FIG. 4A, the planar heating element 4 includes a heater portion 4a and a cover portion 4b provided with the heater portion 4a. As the heater section 4a, for example, a non-woven fabric formed by meandering electric heater wires or a resin compound having PTC characteristics formed into a sheet shape and provided with electrodes is used. The cover portion 4b is molded from a resin having good thermal conductivity. The heater unit 4a and the cover unit 4b are bonded to each other with an adhesive or a double-sided tape. And as shown in FIG.4 (b), at least one part of the cover part 4a is at least one part of the space | gap part E of a driver's seat step upper part, Here, the space | gap part of the upper part of the accelerator 5 of FIG.4 (b) It is arranged to cover.

  With the above configuration, when the heater portion 8a is energized, the heater portion 8a generates heat, and the wall portion 1 side and the cover portion 8b on the upper surface side of the footrest portion 7 are heated. Thereby, in addition to the heating by the heat from the vehicle inner wall surface 1 side, the shoes placed on the cover portion 8b on the upper surface side of the footrest portion 7 can also be heated by heat conduction from the shoe sole, Heating performance is further improved.

  In addition, since the planar heating element 8 and the footrest 7 are integrated, it is possible to attach the planar heating element 8 and the footrest 7 at the same time when attaching to the vehicle, improving work efficiency. To do.

  Further, since at least a part of the cover part 4a is disposed so as to cover at least a part of the gap E at the upper part of the driver's seat, the heat in the foot space of the driver's seat escapes above the gap E. Suppresses and does not impair the feeling of heating at the feet. Further, radiant heating is possible from the upper part of the driver's seat foot toward the right foot, and the feeling of heating at the right foot can be improved.

(Embodiment 3)
A third embodiment of the present invention will be described with reference to FIG.

  FIG. 5 is an external view of a vehicle heating apparatus according to the third embodiment of the present invention. This embodiment is different from the first and second embodiments in that, as shown in the figure, the planar heating element 9 has the vehicle inner wall surfaces 1 and 2 facing the left and right feet of the occupant. In addition to the heating by the heat from the left and right wall surfaces 1 and 2 in the vehicle, it is also arranged by the heat conduction and radiation from the floor 10 facing the foot. Heating is possible and heating performance is further improved.

  In the above-described embodiment, the driver seat has been described. However, the present invention may be applied to a passenger seat or a rear seat, and efficient heating is possible.

Moreover, it is good also as a structure which arrange | positions a planar heating element in places other than a leg | foot part, and heats the site | part which is easy to feel the cold feeling of a human body locally. This configuration will be described with reference to FIG. FIG.
These are the external views of the heating apparatus for vehicles in other embodiment of this invention. In the figure, in addition to the sheet heating element 9 for heating the foot, a ceiling heating element 11 disposed on the ceiling, a door frame heating element 12 disposed on the upper part of the door frame, a steering wheel heating element 13, and a knee. A foot heating element 14 disposed on the instrument panel facing the shin is disposed. Then, the head as a part where the cold feeling is easily felt is heated by the heating element 11 for the ceiling and the heating element 12 for the door frame, and particularly, there is an effect of cutting the cold radiation at room temperature below the freezing point. In addition, the hand part is the part where the feeling of coldness is most easily felt during driving, but the steering wheel heating element 13 directly heats the hand part to remove the cold feeling. Furthermore, the foot heating element 14 heats the knees to the shin with radiant heat.

  Control means may be provided to control each of the heating elements described above. Moreover, it is good also as a structure which adjusts the emitted-heat amount to each heat generating body according to room temperature by a control means. For example, if the room temperature is equal to or higher than a predetermined temperature, the ceiling heating element 11 and the door frame heating element 12 are turned off so as not to unnecessarily warm the head.

  Moreover, it is good also as a structure used together with a car air conditioner. In this case, further, an energy saving effect can be obtained by determining an upper limit value of power supply from the battery and appropriately distributing power to each heating element within the range. Specifically, for example, when the room temperature is a predetermined temperature or lower (for example, 0 ° C. or lower), the heating element 11 for the ceiling, the heating element 12 for the door frame, and the steering wheel are used while the engine is warming up immediately after the start of heating. The heating element 13 is energized to warm the head and hand, quickly warming the part that feels cold, and after warming up, the heating element 11 for the ceiling, the heating element 12 for the door frame, and the heating element for the steering wheel Part of the amount of heat input to 13 is used for the planar heating element 9 and the foot heating element 14 to warm the foot, knee, and shin by radiant heat, thereby further improving the feeling of heating of the whole body. On the other hand, the car air conditioner can be heated by lowering the set temperature than in the case of heating only with warm air, and the engine exhaust heat temperature used in the car air conditioner can be kept lower, so that the fuel efficiency is improved.

  For example, when the room temperature is in the range of 10 ° C. to 20 ° C., the car air conditioner may be turned off to heat the steering wheel heating element 13, the sheet heating element 9, and the foot heating element 14. Since the engine can be heated without using exhaust heat, fuel efficiency is improved as compared with the case of using a car air conditioner.

  Moreover, it is good also as a structure which heats a human body directly by heat conduction, combining the heating by the seat heater arrange | positioned in the seat together with heating by said each heat generating body, and a feeling of heating improves further. In this case as well, there is a further energy saving effect if the upper limit value of the power supply from the battery is determined as described above, and the power within the range is appropriately distributed to each heating element and the seat heater. .

  In the above-described embodiment, heating has been described. However, the present embodiment may be used as a cooling measure for cooling a passenger compartment in summer.

  As described above, the vehicle heating apparatus according to the present invention can be deployed not only in the passenger compartment but also in various types of heating in various seats such as airplanes and theaters.

1 is an external view of a vehicle heating device according to a first embodiment of the present invention. External view of the vehicle heating device in the second embodiment of the present invention (A) External view of the planar heating element 8 of the same embodiment (b) External appearance when the planar heating element 8 and the footrest 7 of the same embodiment are arranged on the wall surface 1 (A) External view of the planar heating element 4 of the same embodiment (b) External appearance when the planar heating element 4 of the same embodiment is disposed on the wall surface 2 External view of the vehicle heating device according to the third embodiment of the present invention External view of a vehicle heating apparatus according to another embodiment of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 2 Wall surface 3, 4 Planar heating element 4a Heater part 4b Cover part 7 Footrest part 8 Planar heating element 8a Heater part 8b Cover part 9 Planar heating element 10 Floor surface

Claims (3)

Disposed in the vehicle wall facing the occupant of the foot, comprising a planar heating element and a cover portion which is disposed the heater unit and the heater unit, the planar heating element is adjacent to the center console side The foot is heated up to at least one of heat conduction and radiation through the shoe, and the cover is provided with at least one cover. The vehicle heating device in which the part is disposed so as to cover at least a part of the gap at the upper part of the driver's seat . Before SL planar heating element at least partially vehicle heating apparatus according to claim 1, wherein part placed the foot and the planar heating element bonded to the rest portions feet are integrated. The heating device for a vehicle according to claim 1, wherein the planar heating element is disposed on a back surface of an interior carpet in the vehicle.

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